--请标明"摘自@枭燚的源码"请尊重他人智力劳动成果，谢谢
--此为lua代码
iApp一本通
require "import"
import "android.view.*"
local window = activity:getWindow()
local lp = window:getAttributes()
--为0.0-1.0直接的浮点数
lp.screenBrightness = 0.01
window:setAttributes(lp)